Printalyzer
Introduction
The Printalyzer is an F-Stop enlarging timer and print exposure meter.
A good overview of the project can be found in these blog posts:
Videos demonstrating the project are here:
The eventual goal of this project is to be available as a complete product available here:
Note: This project is currently a work-in-progress, so expect the hardware and software to be continuously evolving. The last functional version of this repository, using the revision A prototype hardware, was 'main-board-rev-a-186-g9bce418'.
Project Layout
Hardware
The "hardware" directory contains KiCad projects with the complete circuit schematics, bill-of-materials, and PCB layouts.
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Main Board (main-board)
- The main circuit board which contains all of the top panel controls and front panel ports
- Runs off a +12V DC input, and contains regulators for all other voltage rails
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Power Board (power-board)
- The AC power input board, which is the only part of the system that should ever touch mains AC power
- Runs off power from an IEC320 C14 inlet, and provides output power to drive two IEC320 C13 outlets
- Outputs the +12V DC power supply to run the rest of the system
- Contains any connectors that need to be on the rear panel, isolating them if they do not involve mains AC power
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Printalyzer Meter Probe (meter-probe)
- The circuit board contained within the external light meter probe peripheral
- Connected to the main board and powered via a captive USB cable
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Printalyzer DensiStick (densistick)
- The circuit board contained within the external reflection densitometer peripheral
- Connected to the main board and powered via a captive USB cable
Software
The "software" directory contains all the source code for the firmware that runs on the hardware.
Enclosure
The "enclosure" directory contains any CAD models and related resources necessary to physically assemble the project.
License
Individual directories will contain LICENSE files as needed, with relevant details. Generally, the hardware will be CC BY-SA and the software will be BSD 3-Clause. However, external resources may have their own individual license terms.